Key Stage 3 (Year 7, 8 and 9)Continuing with the British Curriculum in Key Stage 3, students continue to build upon their skills and knowledge they have acquired during the Key Stage 2. Specialist subject teachers come into play to ensure that the students begin to gain a mastery over the subjects they are learning. Keeping in mind that the curriculum will eventually lead to IGCSE and A Level later, emphasis is laid upon critical thinking, logical analysis, application and approach and problem solving skills for a well rounded preparation. The core subjects remain the same as in Key Stage 2 and are English, Mathematics, Science and ICT. The other subjects that are offered are Social Studies, Art, Music, Foreign Languages (Chinese/Hindi/Punjabi), Thai, PSHE and Sports.

Key Stage 4 (Year 10 and 11)It is in Key Stage 4 where a student completes the first internationally recognized qualification the ‘International General Certificate of Secondary Education (IGCSE)’, a very important qualification that points out the direction towards higher studies. It is a two year syllabus. And the students of Year 11 sit for their exams in the month of May, after rigorous preparations and intensive practice.IGCSE assessment is conducted by an internationally required United Kingdom assessment body: Cambridge International Examinations (CIE). And Modern International School Bangkok is a well established and a fully fledged centre for CIE. IGCSE offers a wider range of subjects and encourages high academic standards through a practical approach to teaching and learning. English and Mathematics are compulsory. Assessment is not limited to conventional written papers and they consist of a variety of tests e.g. practicals, oral and listening tests.